Chain



March 3, 1931. E. PRESTINARI CHAIN Filed April l5. 1930 A TTRNEYS.

Patented Mar. 3, 193.1

UNITED s'rArEs PATENT OFFICE EUGEN PRESTINARI, OF IRVINGTON, NEW JERSEY,ASSIGNOB T GEMEX COMPANY, OF

NEWARK, NEW JERSEY, A CORPORATION OIF NEW JERSEY CHAIN Application iiledApril 15,

alternating links which are compactly related with reference torelationship.

A further object of the invention is to provide a chain of sheet stockin Which the arms their longitudinal embrace a longitudinally-extendingbody portion and yet lie with their outer surfaces in 'substantially thesame plane'to present an even, smooth appearance to the top of thebracelet. j

With these and vother objects in view, the invention consists of certainnovel features of construction, as will be more fully described, andparticularly pointed out in the appended claims.

In the accompanying drawings:

Fig. 1 is a top plan view of the chain em bodying this invention.

Fig. 2 is a bottom view of a portion of the chain.

Fig. 3 is a sectional view with the bottom portion of the chain removed.

Fig. 4 is a view similar to Fig. 3, showing a single link.

Fig. 5`is a perspective view of the blank lfrom which the link isformed.

Fig. 6 is a perspective view of a'complemental link which is alternatedtherewith in the series.

Fig. 7 is a perspective view showing the link of Fig. 5 partially bentinto nished position.

Fig. 8 is a perspective view of a link bent into finished position. v

Fig. 9 is a longitudinal section thru the chain.

In constructing a chain of the type presenting alternating links, it isfound desirable to cause the links to be compactly related withreference to the length of the chain with the links which are staggeredwith relation to each other overlapping and being overlappedsubstantially egual amounts with reference to the links at either endthereof; andit is also 'found of advantagev to provide a construction inwhich the top surface of the 1930. Serial No. 444,454.

chain will lie in substantially a single plane and present an even,smooth appearance; and 1n order to accomplish this result, I have soformed each of the links of the series as to cause a portion of the bodyof the link to extend in a longitudinal direction with reference to thechain with portions for receiving the arms being depressed a thicknesssub- .stantially equal to the thickness of the arms, 1n order that thearms extending about this body portion may lie iush with the arms of thelink to which they are connected and prev sent an even, smooth outersurface and the following is a detailed description of the presentembodiment of the invention showing the preferred means by which theseadvantageous results may be accompli ed With reference to the drawings,10 esignates one link and 11 the other link of the series which arealternated with one another throughout the length of the chain, the armsextending from the body being staggered as shown and interlocked one Iwith another. Each of these links is provided with arms 12 extendingfrom the body 13, which body is bent into substantially L-shapeintermediate its edges, vas illustrated in Fig. 7, with the longer leg14 of the L extending longitudinally of the chain and the shorter leg 15extending laterally or in a direction of the thickness of the chain.

The arms 12 project beyond the longitudinally-extending portion 14 ofthe body which are depressed, thus severing this portion from the arms,the same being looped or folded about the longitudinally-extendingportion 14 of the body of the next link and setting in the depressedportion, as apparent from Fig. 8, with their end portion l'extendingback toward the/.body and lying substantially parallel with the portion1'? forming the upper surface of the chain.

Arms 18 also extend from the opposite edge of the body and project as at19 (see Fig. 9) to meet the portion 16 causing the ends to abut andcomplete the bottom of the link to prevent accidental detachment. Thelinks thus connected are hingedly related causing the chain to beexceedingly iiexible.

The top surface 20 of each of the arms v.an

is unbroken, while the bottom surface is broken by the joint 21 of theabutting ends of the arms extending laterall of the chain. As each ofthelinks extends a out the lon tudinally extending portion 14 of'the boylf,

. they are held in close compact relationship with reference to thelongitudinal extent of the chain and as the dimension of this portion ofthe body is substantially one-half of the top surface 20 of the arm andbody, each 'of the links will overlap the next link sub-l stantially thesame distance thus forming a mmetrical construction which is highlydeslrable in an ornamental chain of this character.

The foregoing description is directed solely tion, arms projectingbeyond the edge of the longitudinally-extending portion of the body andembracing the body of the next link to hingedly connect the linkstogether.

2. In a chain, a series of sheet metal links,

`each comprising a body extending transversely of the chain and L-shapein cross section with the longer leg of the L extending longitudinallyof the chain, arms projecting beyond the edgeof the longitudinallyextending leg ofthe body and embracing the body of the next link tohingedly connect thelinks together.

3. In a chain, a series of sheet metal links, each comprising a bodyextending transversely of the chain with a sheet metal portion extendinglongitudinally thereof, arms projecting beyond the edge of thelongitudinally-extending portion of the body and embracing the bod ofthe next link to hingedly connect the lin s together, the portions ofthe longitudinally extending portion of the body between the points ofprojection of the arms being depressed inwardly of the linksubstantially the thickness of the stock of the arms to receive the armstherein and permit them to lie flush with the outer surface of thechain.

4. In a chain, a series of sheet metal links, each comprising a bodyextending transwoaose 6. In a chain, a series of sheet metal links,

each comprising a body extending transversely of the chain and L-shapein cross sect1on, arms projecting beyond the edge of thelongitudinally-extending portion of the body and looped about the bodyof the next link and extending substantially parallel with the saldlongitudinally extending portion of the body, and arms projecting fromthe opposite ed e of the body to meet the looped arms.

In a chain, a series of sheet metal links, each com rising a bodextending transversely o the chain and -shape in cross section with thelonger leg of the L extending longitudinally of the chain, armsprojecting beyond the edge of the longitudinally-extendmg leg of thebody and embracin thebody of the next link and extending su stantiallparallel with the said longitudinally exten ing portion of the body tohingedly connect the links together.

8. In a chain, a series of sheet met-al links, each comprising a bodyextending transversely of the chain and L-shape in cross section withthe longer leg of the L extending longitudinally of the chain, arms(projecting beyond the edge of the longitu nally-extending leg of thebody and looped about the body of the next link and-extendingsubstantially parallel with the said longitudinally extendin portion ofthe body to hingedly connect t elinks together, and arms rojecting fromthe opposite edge of the ody to meet the looped arms.

In testimony whereof I aiix my signature.

EUGE-N PRESTINARI.

versely of the chain and L-shape in cross section with the longer leg ofthe L. extending longitudinally of the chain, arms projecting beyond theedge of the longitudinally extending leg of the body and embracing thebody of the next link to hingedly connect the links together, theportions of the longitudinally extending leg of the body between thepoints of projection of the arms being depressed

